* {
    margin: 0;
    padding: 0;
    list-style: none;
    font-family: MicrosoftYaHei;
    font-size: 16px;
    outline: none;
}

a {
    text-decoration: none;
}

.fl {
    float: left;
}

.fr {
    float: right;
}

.clearfix:after {
    content: '';
    display: block;
    clear: both;
    visibility: hidden;
    height: 0;
}

.clearfix {
    zoom: 1;
}